Improvement in middlings-purifiers



' plan view.

"UNITED v'S'IA'IES PATENT OFFI;

JOSEPH w. WILSON, OF wAnSAW, ILLINOIS,`

IMPROVEMENT |N MIDDLINGs-PURIFIERS.

y Specification forming part of Letters Patent No. 158,771, datedJanuary 12, 1875; application iiled Y i June 6, 1874. v

To al'l'fwhom it may concern B e it known that I, J OSEPHW. WILSON, ofWarsaw, in the county of Hancock and State of Illinois, 11ave-inventedanew and Improved Middlings-Puritier, of which the following is aspecification: J l. v

The invention will first be fully described, and then pointedoutin theclaims. i

Figure lis a longitudinal sectional elevation of my improved purier, andFig. 2 is a Similar letters of reference indicate corre` sponding parts.A is a spout, through which the middlings are passed into a stationary'bolt, d, which incloses a fan, b, to the outer edges of which areattached brushes c, for the purpose of agitating the`n1iddlings,l and toprevent the bolt-A cloth from clogging.- The fan b takes the air I:around the shaft at the bottom, and forces it, together withmiddlingsjand impurities, out

into chamber f, where there is a current of air passing upward to fan a,which carries the im-- purities up and out intoY a suitable dust-room,-

While the middlings are allowed to Vfall to the sweep-w, whichdischarges themat the opening m onto a horizontal bolt, h, whichdescends to the air-trunk k. The frame of this bolt is furnished withIOOpSIQ'thrOughW-hieh are passed the ods l, which` reston-` two .Asprings, a', at the uter ends,and shouldhaveV lnation wit-h chambers t'q S,`suctionfan a, and horizontal bolt h, as and for the purposespecione springbetween them at the'fother endl',

` lhe rods are made to reciprocate by therec centric U, and they arefurnished with checkL nuts b', against vwhich the loops on the-,bolt

strike, imparting to it a jarring longitudinal motion, which, togetherwith a quivering motion by the vibration of the rods, keeps the middlings constantly agitated over the cloth, Y

and also keeps the cloth clean withoutthe aid of knoekers orbrnshes.

S, represents the top and sidesof an air-y chamber, of which the bolt hforms -the bot tom. Air is taken in at each end'of this chamber, anddrawn longitudinally over thebolt, also up through it, for the purposeof gathering up anyimpurities that may be inamong the middlings, andcarrying them off through theair-trunk j. -The clean middlings fall intoY hopper it. The tailings are discharged oft' the end ofthe bolt intothe air trunk k, where they are carried up into an eXpansion-chamber,,'lettingback onto the bolt h, through spout-lp," anything liftedthrough the trunks k,

andzjalso another trunk, j, drawing from the up'perpart of theboltanything too heavy to bev allowed to pass into the dust-room.

I propose to employ one or more of these Y trunks j, leading fromair-chambers into thev expansionchamber, or vinto trunk k. From theexpansion-chamber the impurities are carried oif through trunk q by thedraft of fa'n a.

By this contrivance the middlings are kept agitated throughout theentire passage through the machine.

Havingthus described my invention, lclaim as new and desire to secure byLetters Patent- -i l. The combination of suction=f`an a, fan b, havingbrushes c, stationary bottomless bolt d, and circumjacent chamber f,allfeonstructed and arranged to operate substantially in the mannerdescribed. Y 2. The air-trunks cj and spout p, in combi- 3. 'Thevcombination of horizontal bolt h, rods l, eccentric U,`springs ad,loops t, and "check-nuts b', substantially as and for the purposespecified. l

R. L. MCDOUGAL, EDWD'. E. LANE.

